Google has always been including products and their prices in the SERPs. Right now, it shows not just a simple list, but a few images as well. What stops Google from making those links affiliate links? If Google does it, does it turn into a thin affiliate, because it doesn't produce any valuable content? Yes, Google provides a search tool, but so do many affiliate sites that scrape merchant feeds. Does Google jump on thinnish affiliates, because Google is one of them? Just a thought.